Kapak ve örtülü izinler (veritabanı altyapısı)

dbo.ImplyingPermissions

Aşağıdaki örnek komut dosyası, bağımsız değişkenler olarak bir güvenliği sağlanabilir sınıfını ve bir izin adını adını alır.Örnek, belirtilen bir düğüm kök izinleri hiyerarşi erişir: Sunucu denetimi DURDURUR.Örnek patentlerini tarafından belirtilen izni içeren izinlerin listesini gösterir.

CREATE FUNCTION dbo.ImplyingPermissions (@class nvarchar(64), 
   @permname nvarchar(64))
RETURNS @ImplPerms table (permname nvarchar(64), 
   class nvarchar(64), height int, rank int)
AS
BEGIN
   WITH 
   class_hierarchy(class_desc, parent_class_desc)
   AS
   (
   SELECT DISTINCT class_desc, parent_class_desc 
      FROM sys.fn_builtin_permissions('')
   ),
   PermT(class_desc, permission_name, covering_permission_name,
      parent_covering_permission_name, parent_class_desc)
   AS
   (
   SELECT class_desc, permission_name, covering_permission_name,
      parent_covering_permission_name, parent_class_desc
      FROM sys.fn_builtin_permissions('')
   ),
   permission_covers(permission_name, class_desc, level,
      inserted_as)
   AS
    (
    SELECT permission_name, class_desc, 0, 0
       FROM PermT
       WHERE permission_name = @permname AND
       class_desc = @class
    UNION ALL
    SELECT covering_permission_name, class_desc, 0, 1
       FROM PermT 
       WHERE class_desc = @class AND 
          permission_name = @permname AND
          len(covering_permission_name) > 0
    UNION ALL
    SELECT PermT.covering_permission_name, 
       PermT.class_desc, permission_covers.level,
       permission_covers.inserted_as + 1
       FROM PermT, permission_covers WHERE
       permission_covers.permission_name =
       PermT.permission_name AND
       permission_covers.class_desc = PermT.class_desc 
       AND len(PermT.covering_permission_name) > 0
    UNION ALL
    SELECT PermT.parent_covering_permission_name,
       PermT.parent_class_desc,
       permission_covers.level + 1,
       permission_covers.inserted_as + 1
       FROM PermT, permission_covers, class_hierarchy
       WHERE permission_covers.permission_name =
       PermT.permission_name AND 
       permission_covers.class_desc = PermT.class_desc
       AND permission_covers.class_desc = class_hierarchy.class_desc
       AND class_hierarchy.parent_class_desc =
       PermT.parent_class_desc AND
       len(PermT.parent_covering_permission_name) > 0
    )
  INSERT @ImplPerms
  SELECT DISTINCT permission_name, class_desc, 
     level, max(inserted_as) AS mia 
     FROM permission_covers
     GROUP BY class_desc, permission_name, level
     ORDER BY level, mia
  RETURN
END

A.Bir şema üzerinde alter iznine onayladığı anlamına izinleri listeleme

SELECT * FROM dbo.ImplyingPermissions('schema', 'alter')

B.Bir nesne üzerinde görünüm TANIMI izni onayladığı anlamına izinleri listeleme

SELECT * FROM dbo.ImplyingPermissions('object', 'view definition') 

C.Sahipliği Al izni üzerinde onayladığı anlamına izinleri listeleme biryol

SELECT * FROM dbo.ImplyingPermissions('route', 'take ownership')

D.Bir xml şema koleksiyonu üzerinde execute izni onayladığı anlamına izinleri listeleme

SELECT * FROM dbo.ImplyingPermissions('xml schema collection', 'execute')

Ayrıca bkz.

Başvuru

Kavramlar